Grinding, polishing, or buffing machine.



No. 662,536; P atanted Nov; 27, I900.

JJKOENIG.

GRINDING, POLISHING, UR BUFFING MACHINE.

(Application filed July 31, 1899;)

(No Model.) 2 Sheets-Sheet l.

G 0 m 7 2 V o N d e t n e t a P G N E 0 K G 3 5, 2 6 6 m N GRINDING, POLISHING, GR BUFI-ING MACHINE;

(Application filed July 81, 1899.)

2 Sheets-Sheet 2.

(No Model.)

UNITED STATES Parent @FFICE JOSEPH KOENIG, OF TWO RIVERS, W'ISCONSIN, ASSIGNOR TO THE ALUMINUM MANUFACTURING COMPANY, OF SAME PLACE.

GRINDING, POLISHING, OR BUFFING MACHINE.

SPECIFICATION forming part of Letters Patent No. 662,536, dated November 27, 1900. Application filed July 31, 1899. Serial No. 725,658. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH KOENIG, a citizen of the United States, and a resident of Two Rivers, in the county of Manitowoc and State of Wisconsin, have invented certain new and useful Improvements in Grinding, Polishing, or Buffing Machines; and Ido hereby declare that the following is a full, clear, and exact description thereof.

IO My invention has for its object to provide simple economical machines for grinding, polishing, or buffing operations upon flat articles, especially the blanks for metal toilet-combs; and it consists in certain peculiarities of con- 1'. 5 struction and combination of parts hereinafter particularly set forth with reference to the accompanying drawings and subsequently claimed.

Figure 1 of the drawings represents a front elevation of a machine constructed according to my invention as it appears partly in vertical longitudinal section; Fig. 2, an end elevation of the machine, partly broken back and in transverse section; Fig. 3, a detail partly-sectional view of wheel suspension and drive mechanism embodied in said machine; Fig. 4:, a plan view of the aforesaid machine, partly in horizontal section; and Fig. 5, a perspective view of a portion of an endless flexible carrier and a work-holder thereon.

Referring by letter to the drawings, A indicates a table having the frame portion thereof provided with bearings for the spindles B of a pair of rotary polygonal drums C,

5 and trained on the drums is an endless flexible carrierD, to which work-holders E are made fast by rivets or otherwise. These workholders are angular blocks having recesses therein, and the dimensions of each block approximate those of the dru m-faces, said blocks being arranged one after another upon the endless flexible carrier. One of the drumspindles is shown provided with a pulley F for a driving-belt; but other means may be 5 employed to impart travel to the endless flexible carrier, the speed of the latter being comparatively slow. The upper stretch of the endless flexible carrier moves along on the table A, and its lower stretch travels in a tank submerge the work-holders, this tank being supported by the frame portion of said table. Water enters the tank through a pipe I) at one level and escapes through a pipe 0 at a higher level, whereby provision is had for constant change of water in said tank without increase of depth, said water serving to cool the work-holders. The endlessflexible carrier and work-holders thereon travel on the table A between u pwardly-projecting parallel bars H, and are thereby held against lateral displacement. The recesses in the work holders are for the blanks to be operated upon, and to prevent said blanks from slipping out of said holders when in contact with grinding, polishing, or buffing wheels I provide stops that are preferably rollers I, journaled in bearings rising at intervals in pairs from the upper edges of the aforesaid side bars.

The machine is organized to include a plurality of wheels J, that operate to grind, polish, or buff the blanks in the work-holders as the latter are moved along the table A by travel of the endless flexible carrier, and each of said Wheels is arranged to run between a pair of the transverse stops aforesaid. The wheels are fast on spindles that have their hearings in forked forward ends of arms K, and the forked rear ends of these arms are loose on shafts L, that run in hangers M, supported by an overhead shaft N, the latter shaft being driven by any suitable means.

By an arrangement of pulleys and belts, as herein shown, rotary motion of the shaft N is communicated to the wheels J, and each of the hangers M is provided with a crank extension M, connected by a longitudinallyadjustable link 0 to a crank P, fast on a rockshaft Q, supported in bearings projecting go from the table-frame. The rock-shaft is controlled by a hand-lever R, fast thereon, and by operating this lever all of the hangers M will have simultaneous pivotal adjustment on shaft N to impart a movement to arms K in a direction transversely of the work-holders above table A, whereby the aforesaid wheels are carried in or out of contact with adjacent blanks.

The table A is provided with horizontal IOO brackets S, having longitudinal side bars 61, between which are arranged V-notched blocks T, having depending screw-threaded shanks e, engaging longitudinal slotsf in said brackets, andset-nuts 9 above and below said slots. Antifriction-disks U, suspended from the arms K, engage the V-notches in the blocks T, central of the same when the wheels J are in working position, said blocks being horizontally adjustable to provide for correct centering of said disks and vertically adjustable to regulate pressure of said wheels on the blanks that are traveled in contact therewith. When the lever R is operated to impart movement to the arms K transversely of adjacent work holders, and thereby break contact of said wheels and blanks, the antifriction-disks U ride upon inclined surfaces of the blocks S to lift said arms and the aforesaid wheels.

In practice the length of the links 0 and horizontal adjustment of blocks T are regulated so that the axes of wheels J will be out of line with each other, whereby these wheels will separately operate in successive order upon as many different divisions of the surface of the material carried by each Workholder, their pressure being resisted by the table opposed to the upper stretch of the endless carrier.

The organization herein shown and described may be somewhat varied in the matter of mechanical detail without departure from the scope of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A grinding, polishing and buffing machine comprising an endless train of holders, means for traveling same, a table arranged to support the upper stretch of said holders, and a series of grinding, polishing or bufling wheels arranged to have their axes out of line with each other to separately operate in success-ive order upon as many difi'erent divisions of the surface of the material carried by said holders.

2. A grinding, polishing or buffing machine comprising a table provided with upwardlyprojecting parallel bars and stops in pairs transversely of the bars, an endless train of holders having travel on the table between said bars, and grinding, polishing or buffing wheels arranged between the pairs of stops to work on material carried by said holders.

3. A grinding, polishing and buffing machine comprising an endless train of holders, means for traveling same, a table arranged to support the upper stretch of said holders, a series of grinding, polishing or buffing wheels arranged to have their axes out of line with each other to separately operate in successive order upon as many different divisions of the surface of the material carried by said holders, and means for simultaneously bringing all of the wheels in and out of working pcsition.

4. A grinding,polishing or buffing machine, comprising an endless train of holders, means for traveling the same, grinding, polishing or buffing wheels, and means for imparting a vertical adjustment to the wheels coincident with a movement of the same in a direction transversely of the train of holders to come Witnesses:

J. F. MAGEE, W. J. WBIETH. 

